LAMINAR ELECTRICAL RESPONSES IN LATERAL GENICULATE BODY OF CAT

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Abstract
By means of microelectrode recordings from the dorsal lateral geniculate body of the cat it was demonstrated that a laminar electrical organization is present. The lamination is remarkably similar to that obtained anatomically by transneuronal degeneration. The predominant findings are that unit spikes can readily be elicited in the upper and lower laminae of the lateral geniculate body when light is shined into the contralateral eye. The middle lamina is fired by light from the ipsilateral eye. Very occasionally unit potentials are seen that can be interpreted to be fired by the light stimulation to either eye.